# 语法：浏览器对象.find_element(by=By.TAG_NAME,value="标签名"）
import time
from selenium import webdriver
from selenium.webdriver.common.by import By

driver = webdriver.Chrome()
driver.get("http://121.43.169.97:8848/pageA.html")
driver.find_element(By.TAG_NAME,"input").send_keys("admin")
time.sleep(3)
driver.quit()
# 注意：不常用，标签名容易重复